X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsubstitution%2Flpx_sn_drop.ma;h=22e058f269ecf06d9c41d5cb9d2e431db06556b2;hb=7e06d9d148ae04a21943377debd933a742d0c2fa;hp=b16f8288df53d6a46d3dc9e5245b916534b0fae0;hpb=3167db4903eea2eddc60a91cfd922be3672ce077;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/substitution/lpx_sn_drop.ma b/matita/matita/contribs/lambdadelta/basic_2/substitution/lpx_sn_drop.ma
index b16f8288d..22e058f26 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/substitution/lpx_sn_drop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/substitution/lpx_sn_drop.ma
@@ -17,7 +17,7 @@ include "basic_2/substitution/lpx_sn.ma".
 
 (* SN POINTWISE EXTENSION OF A CONTEXT-SENSITIVE REALTION FOR TERMS *********)
 
-(* Properies on dropping ****************************************************)
+(* Properties on dropping ****************************************************)
 
 lemma lpx_sn_drop_conf: ∀R,L1,L2. lpx_sn R L1 L2 →
                         ∀I,K1,V1,i. ⇩[i] L1 ≡ K1.ⓑ{I}V1 →